Forum Thread

Onkyo video issue

Dr. J 25,043 3,353 November 30, 2015 at 01:05 PM
I don't have a model # right now but I purchased an Onkyo receiver with HDMI passthru in August, 2013.

It's had a strange HDMI issue where the passthru device (currently a Dish box) will cut out briefly, or more recently go to a "scrambled"/noise (or "snow") screen briefly. It's been doing that for a few months I'd say. It's been a nuisance.

More recently (past couple of weeks) it seems to black out for several seconds at a time.

I am pretty sure it's the receiver but I haven't done any extensive troubleshooting as the blackouts happen more or less randomly.

I recalled there being some Onkyo HDMI issue but the only thing I can find is a network or sound issue that was prevalent up to 2012. (I'll note I bought my unit refurbished so it may have been made in 2012).

Has anyone here had a similar issue and had it fixed (for free)?

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I would say switch the HDMI ports it's plugged into to a different "working" one. I would agree it's probably the receiver.
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Quote from Dr. J View Post :
I don't have a model # right now but I purchased an Onkyo receiver with HDMI passthru in August, 2013.

It's had a strange HDMI issue where the passthru device (currently a Dish box) will cut out briefly, or more recently go to a "scrambled"/noise (or "snow") screen briefly. It's been doing that for a few months I'd say. It's been a nuisance.

More recently (past couple of weeks) it seems to black out for several seconds at a time.

I am pretty sure it's the receiver but I haven't done any extensive troubleshooting as the blackouts happen more or less randomly.

I recalled there being some Onkyo HDMI issue but the only thing I can find is a network or sound issue that was prevalent up to 2012. (I'll note I bought my unit refurbished so it may have been made in 2012).

Has anyone here had a similar issue and had it fixed (for free)?
The best solution for your problem is to plug the Dish box directly into your television, and enable the HDMI ARC feature between your television and the Onkyo AVR. This will cause the TV to automatically route the audio signal to the AVR, even though the Dish box is attached directly to your television. I know that the Onkyo supports ARC. If your television supports it, the feature will be available on one HDMI port only, marked ARC. You then need to enable the CEC feature on both your TV and the Onkyo.

So you're next asking why does it happen. When you see the snow, it means the Dish box is transmitting HDCP-protected content and it is failing to send valid HDCP keys. This condition isn't supposed to occur. However, it's difficult to just say what the cause is, because the way HDCP works is that the Dish box needs to get HDCP certificates from both the TV and the Onkyo, validate them, and then send the encrypted stream. So it could be the cables are bad, it could be the AVR, or it could be that the Dish box is failing to properly authenticate the two downstream devices.
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